Life-cycle thinking and the LEED rating system

Global perspective on building energy use and environmental impacts

Sami Al-Gahmdi, Melissa M. Bilec

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

This research investigates the relationship between energy use, geographic location, life cycle environmental impacts, and Leadership in Energy and Environmental Design (LEED). The researchers studied worldwide variations in building energy use and associated life cycle impacts in relation to the LEED rating systems. A Building Information Modeling (BIM) of a reference 43 000 ft2 office building was developed and situated in 400 locations worldwide while making relevant changes to the energy model to meet reference codes, such as ASHRAE 90.1. Then life cycle environmental and human health impacts from the buildings energy consumption were calculated. The results revealed considerable variations between sites in the U.S. and international locations (ranging from 394 ton CO2 equiv to 911 ton CO2 equiv, respectively). The variations indicate that location specific results, when paired with life cycle assessment, can be an effective means to achieve a better understanding of possible adverse environmental impacts as a result of building energy consumption in the context of green building rating systems. Looking at these factors in combination and using a systems approach may allow rating systems like LEED to continue to drive market transformation toward sustainable development, while taking into consideration both energy sources and building efficiency.

Original languageEnglish
Pages (from-to)4048-4056
Number of pages9
JournalEnvironmental Science and Technology
Volume49
Issue number7
DOIs
Publication statusPublished - 7 Apr 2015
Externally publishedYes

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global perspective
Life Cycle Stages
energy use
leadership
Environmental impact
Life cycle
environmental impact
life cycle
energy
Energy utilization
Geographic Locations
Environmental Health
Office buildings
Conservation of Natural Resources
health impact
Systems Analysis
Sustainable development
sustainable development
Research Personnel
Health

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Medicine(all)

Cite this

Life-cycle thinking and the LEED rating system : Global perspective on building energy use and environmental impacts. / Al-Gahmdi, Sami; Bilec, Melissa M.

In: Environmental Science and Technology, Vol. 49, No. 7, 07.04.2015, p. 4048-4056.

Research output: Contribution to journalArticle

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